Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Watches and Warnings have been issued for Hurricane Jose and Major Hurricane Maria

Hurricane Jose is producing life-threatening surf and rip currents and possible heavy rainfall along portions of the East Coast. A Tropical Storm Watch and Warning are in effect from Fire Island Inlet, NY to north to Hull, MA. Maria is a major hurricane. Puerto Rico and the US Virgin Islands are under a Hurricane Warning and will begin receiving impacts by Tuesday night. Read More >

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78° N Lon: 89.25° W Elev: 400 ft.

Fair

79°F

26°C

Humidity 77%
Wind Speed N 3 mph
Barometer 29.98 in (1014.8 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 19 Sep 10:52 am CDT
Detailed forecast for

Union County

Today
Partly sunny. Highs in the mid 80s. Calm winds late in the morning becoming southwest around 5 mph in the afternoon.
Tonight
Mostly clear. Lows in the upper 60s. South winds around 5 mph.
Wednesday
Mostly sunny. Highs around 90. South winds 5 to 10 mph.
Wednesday Night
Mostly clear. Lows in the upper 60s. South winds 5 mph.
Thursday
Mostly sunny. Highs around 90. South winds 5 mph.
Thursday Night
Mostly clear. Lows in the upper 60s.
Friday
Mostly sunny. Highs in the upper 80s.
Friday Night
Mostly clear. Lows in the upper 60s.
Saturday
Mostly sunny. Highs in the upper 80s.
Saturday Night
Mostly clear. Lows in the mid 60s.
Sunday
Mostly sunny. A 20 percent chance of showers and thunderstorms in the afternoon. Highs in the mid 80s.
Sunday Night
Mostly clear. Lows in the mid 60s.
Monday
Mostly sunny. A 20 percent chance of showers and thunderstorms in the morning. Highs in the mid 80s.



Click Map For Forecast
1037 AM CDT Tue Sep 19 2017
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database